Bearing Device, Stage Device, and Exposure Apparatus
First Claim
1. A bearing device having a movable body having a pad part and a fixed body and supplying a medium to the pad part to movably support the movable body by the fixed body, the bearing device comprising:
- a supply part which is provided in the fixed body and to which the medium is supplied,a connecting part which connects the supply part with the pad part, andan opening and closing unit which opens and closes the connecting part according to the position of the movable body with respect to the fixed body.
1 Assignment
0 Petitions
Accused Products
Abstract
A sufficient moving stroke can be secured without connecting a tube, etc. for supply of air. A movable body (3) having a pad part (73) and a fixed body (2) are provided. The movable body (3) is movably supported by the fixed body (2) by supplying the medium to the pad part (73). A supply part (5) which is provided in the fixed body (2) and to which the medium is supplied; a connecting part (75) which connects the supply part (5) with the pad part (73); and an opening and closing unit (6) which opens and closes the connecting part (75) according to the position of the movable body (3) with respect to the fixed body (2), are provided.
18 Citations
16 Claims
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1. A bearing device having a movable body having a pad part and a fixed body and supplying a medium to the pad part to movably support the movable body by the fixed body, the bearing device comprising:
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a supply part which is provided in the fixed body and to which the medium is supplied, a connecting part which connects the supply part with the pad part, and an opening and closing unit which opens and closes the connecting part according to the position of the movable body with respect to the fixed body. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A bearing device having a movable body having a pad part and a fixed body and supplying a medium to the pad part to movably support the movable body by the fixed body, the bearing device comprising:
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a supply part which is provided in the fixed body and to which the medium can be supplied, a plurality of valve units which can communicate the supply part and the movable body, and a supply unit which causes at least one valve unit of the plurality of valve units to connect with the supply part and the movable body according to the position of the movable body with respect to the fixed body, to supply the medium to the pad part. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16)
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Specification